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<?php |
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if (!defined('ABSPATH') && !defined('MCDATAPATH')) exit; |
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|
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if (!class_exists('WPRProtectUtils_V541')) : |
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class WPRProtectUtils_V541 { |
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public static function getIP($ip_header) { |
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$ip = null; |
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|
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if (is_array($ip_header)) { |
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if ((array_key_exists('hdr', $ip_header) && is_string($ip_header['hdr'])) && |
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(array_key_exists('pos', $ip_header) && is_int($ip_header['pos']))) { |
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|
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if (array_key_exists($ip_header['hdr'], $_SERVER) && is_string($_SERVER[$ip_header['hdr']])) { |
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$_ips = preg_split("/(,| |\t)/", $_SERVER[$ip_header['hdr']]); |
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|
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if (array_key_exists($ip_header['pos'], $_ips)) { |
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$ip = $_ips[$ip_header['pos']]; |
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} |
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} |
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} |
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} elseif (array_key_exists('REMOTE_ADDR', $_SERVER)) { |
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$ip = $_SERVER['REMOTE_ADDR']; |
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} |
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|
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if (is_string($ip)) { |
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$ip = trim($ip); |
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|
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if (WPRHelper::safePregMatch('/^\[([0-9a-fA-F:]+)\](:[0-9]+)$/', $ip, $matches)) { |
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$ip = $matches[1]; |
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} elseif (WPRHelper::safePregMatch('/^([0-9.]+)(:[0-9]+)$/', $ip, $matches)) { |
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$ip = $matches[1]; |
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} |
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} |
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|
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return self::isValidIP($ip) ? $ip : '127.0.0.1'; |
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} |
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|
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public static function isIPv6($ip) { |
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return (false === filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) ? false : true; |
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} |
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|
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public static function hasIPv6Support() { |
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return defined('AF_INET6'); |
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} |
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|
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public static function isValidIP($ip) { |
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return filter_var($ip, FILTER_VALIDATE_IP) !== false; |
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} |
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|
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public static function bvInetPton($ip) { |
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$pton = self::isValidIP($ip) ? (self::hasIPv6Support() ? inet_pton($ip) : self::_bvInetPton($ip)) : false; |
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return $pton; |
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} |
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|
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public static function _bvInetPton($ip) { |
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if (WPRHelper::safePregMatch('/^(?:\d{1,3}(?:\.|$)){4}/', $ip)) { |
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$octets = explode('.', $ip); |
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$bin = chr($octets[0]) . chr($octets[1]) . chr($octets[2]) . chr($octets[3]); |
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return $bin; |
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} |
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|
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if (WPRHelper::safePregMatch('/^((?:[\da-f]{1,4}(?::|)){0,8})(::)?((?:[\da-f]{1,4}(?::|)){0,8})$/i', $ip)) { |
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if ($ip === '::') { |
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return "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"; |
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} |
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$colon_count = substr_count($ip, ':'); |
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$dbl_colon_pos = strpos($ip, '::'); |
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if ($dbl_colon_pos !== false) { |
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$ip = str_replace('::', str_repeat(':0000', |
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(($dbl_colon_pos === 0 || $dbl_colon_pos === strlen($ip) - 2) ? 9 : 8) - $colon_count) . ':', $ip); |
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$ip = trim($ip, ':'); |
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} |
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|
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$ip_groups = explode(':', $ip); |
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$ipv6_bin = ''; |
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foreach ($ip_groups as $ip_group) { |
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$ipv6_bin .= pack('H*', str_pad($ip_group, 4, '0', STR_PAD_LEFT)); |
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} |
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|
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return strlen($ipv6_bin) === 16 ? $ipv6_bin : false; |
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} |
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|
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if (WPRHelper::safePregMatch('/^(?:\:(?:\:0{1,4}){0,4}\:|(?:0{1,4}\:){5})ffff\:(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})$/i', $ip, $matches)) { |
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$octets = explode('.', $matches[1]); |
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return chr($octets[0]) . chr($octets[1]) . chr($octets[2]) . chr($octets[3]); |
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} |
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|
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return false; |
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} |
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|
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public static function isIPInRange($start_ip_range, $end_ip_range, $ip) { |
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$bin_ip = null; |
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if ($ip) { |
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$bin_ip = self::bvInetPton($ip); |
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} |
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if ($bin_ip && $bin_ip >= self::bvInetPton($start_ip_range) |
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&& $bin_ip <= self::bvInetPton($end_ip_range)) { |
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return true; |
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} |
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return false; |
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} |
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|
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public static function isPrivateIP($ip) { |
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$private_ip_ranges = array( |
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array("10.0.0.0", "10.255.255.255"), |
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array("172.16.0.0", "172.31.255.255"), |
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array("192.168.0.0", "192.168.255.255"), |
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array("127.0.0.1", "127.255.255.255"), |
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array("::1","::1"), |
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array("fc00::","fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff") |
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); |
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|
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$result = false; |
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foreach ($private_ip_ranges as $ip_range) { |
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$result = self::isIPInRange($ip_range[0], $ip_range[1], $ip); |
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if($result) { |
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return $result; |
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} |
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} |
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return $result; |
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} |
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|
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public static function rrmdir($dir) { |
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if (is_dir($dir)) { |
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$objects = scandir($dir); |
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foreach ($objects as $object) { |
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if ($object != "." && $object != "..") { |
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if (is_dir($dir . "/" . $object) && !is_link($dir . "/" . $object)) { |
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WPRProtectUtils_V541::rrmdir($dir . "/" . $object); |
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} else { |
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unlink($dir . "/" . $object); |
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} |
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} |
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} |
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rmdir($dir); |
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} |
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} |
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|
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public static function getLength($val) { |
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$length = 0; |
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|
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if (is_array($val)) { |
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foreach ($val as $e) { |
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$length += WPRProtectUtils_V541::getLength($e); |
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} |
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|
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return $length; |
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} else { |
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return strlen((string) $val); |
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} |
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} |
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|
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public static function parseFile($fname) { |
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$result = array(); |
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|
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if (file_exists($fname)) { |
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$content = file_get_contents($fname); |
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if (($content !== false) && is_string($content)) { |
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$result = json_decode($content, true); |
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|
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if (!is_array($result)) { |
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$result = array(); |
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} |
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} |
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} |
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|
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return $result; |
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} |
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|
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public static function fileRemovePattern($fname, $pattern, $regex_pattern = false) { |
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if (!file_exists($fname)) return; |
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|
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$content = file_get_contents($fname); |
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if ($content) { |
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if ($regex_pattern) { |
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$modified_content = preg_replace($pattern, "", $content); |
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} else { |
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$modified_content = str_replace($pattern, "", $content); |
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} |
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|
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if ($content !== $modified_content) { |
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file_put_contents($fname, $modified_content); |
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} |
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} |
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} |
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|
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public static function havePluginsLoaded() { |
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return (function_exists('did_action') && (did_action('plugins_loaded') > 0)); |
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} |
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|
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public static function haveMupluginsLoaded() { |
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return (function_exists('did_action') && (did_action('muplugins_loaded') > 0)); |
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} |
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|
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public static function isWPVersionCompatible($required) { |
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global $wp_version; |
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|
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// Strip off any -alpha, -RC, -beta, -src suffixes. |
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list( $version ) = explode( '-', $wp_version ); |
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|
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return empty( $required ) || version_compare( $version, $required, '>=' ); |
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} |
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|
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public static function preInitWPHook($hook_name, $function_name, $priority, $accepted_args) { |
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global $wp_filter; |
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|
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// Check if $wp_filter is not initialized or not an array |
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if (!isset($wp_filter) || !is_array($wp_filter)) { |
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$wp_filter = array(); |
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} |
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|
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// Check if the hook exists in $wp_filter |
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if (!isset($wp_filter[$hook_name])) { |
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$wp_filter[$hook_name] = array(); |
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} |
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|
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// Check if the priority exists for the hook |
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if (!isset($wp_filter[$hook_name][$priority])) { |
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$wp_filter[$hook_name][$priority] = array(); |
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} |
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|
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// Add the filter function information to the $wp_filter array |
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$wp_filter[$hook_name][$priority][] = array( |
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'function' => $function_name, |
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'accepted_args' => $accepted_args, |
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); |
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} |
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|
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public static function signMessage($message, $key, $algorithm = 'sha256') { |
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if (!is_string($message) || !is_string($key)) { |
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return false; |
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} |
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|
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return hash_hmac($algorithm, $message, $key); |
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} |
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|
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public static function verifyMessage($message, $signature, $key, $algorithm = 'sha256') { |
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if (!is_string($message) || !is_string($signature) || !is_string($key)) { |
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return false; |
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} |
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|
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$calc_signature = self::signMessage($message, $key, $algorithm); |
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|
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return hash_equals($calc_signature, $signature); |
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} |
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} |
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endif; |
